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η-ρ Pareto optimization of 3-phase 3-level T-type AC-DC-AC converter comprising Si and SiC hybrid power stage
(2014)2014 International Power Electronics Conference (IPEC-Hiroshima 2014 - ECCE ASIA)In this paper, the η-ρ (efficiency - power density) Pareto front of a 20 kVA Uninterruptible Power Supply (UPS), comprising a Si and SiC hybrid 3-level T-type rectifier and inverter stage, and input / output side filters, is determined. A multi-objective optimization procedure is detailed, which employs an electrical converter model and coupled electro-thermal component models. Each component model determines the corresponding losses, ...Conference Paper -
Analysis and practical relevance of CM/DM EMI noise separator characteristics
(2014)2014 16th European Conference on Power Electronics and Applications (EPE'14-ECCE Europe)This Paper details two different contributions related to practical CM/DM EMI measurements. A first part investigates sources and implications of measurement errors that result for CM/DM separators in a practical measurement environment with a particular focus on the recently presented input impedance criterion for CM/DM separators. Furthermore, the realization of an active CM/DM separator, which features competitive separation capabilities ...Conference Paper -
Modeling and Multi-Objective Optimization of 2.5D Inductor-Based Fully Integrated Voltage Regulators for Microprocessor Applications
(2015)Proceedings of the 1st Southern Power Electronics Conference (SPEC 2015), Fortaleza, Brazil, November 29-December 2, 2015Conference Paper -
Comparative Evaluation of Soft-Switching, Bidirectional, Isolated AC/DC Converter Topologies
(2012)2012 Twenty-Seventh Annual IEEE Applied Power Electronics Conference and Exposition (APEC)For realizing bidirectional and isolated AC/DC converters, soft-switching techniques/topologies seem to be a favourable choice as they enable a further loss and volume reduction of the system. Contrary to the traditional dual-stage approach, using a power factor corrector (PFC) stage in series with a DC/DC isolation stage, we showed recently that the same functionality can be achieved under full soft-switching operation using a single-stage ...Conference Paper -
Towards cube-sized compute nodes: Advanced packaging concepts enabling extreme 3D integration
(2017)2017 IEEE International Electron Devices Meeting (IEDM)Conference Paper -
Conceptualization and Multi-Objective Optimization of the Electric System of an Airborne Wind Turbine
(2011)IEEE International Symposium on Industrial Electronics (ISIE), 2011 : 27 - 30 June 2011, Gdańsk, Poland ; proceedingsConference Paper -
Exploration of the Design and Performance Space of a High Frequency 166 kW/10 kV SiC Solid-State Air-Core Transformer
(2018)2018 International Power Electronics Conference (IPEC-Niigata 2018 -ECCE Asia)Conference Paper -
Switching Control Strategy for Full ZVS Soft-Switching Operation of a Dual Active Bridge AC/DC Converter
(2012)2012 Twenty-Seventh Annual IEEE Applied Power Electronics Conference and Exposition (APEC)A switching control strategy to enable Zero-Voltage-Switching (ZVS) over the entire input-voltage interval and the full power range of a single-stage Dual Active Bridge (DAB) AC/DC converter is proposed. The converter topology consists of a DAB DC/DC converter, receiving a rectified AC line voltage via a synchronous rectifier. The DAB comprises primary and secondary side full bridges, linked by a high-frequency isolation transformer and ...Conference Paper -
Impact of Stator Grounding in Low Power Single-Phase EC-Motors
(2014)2014 IEEE Applied Power Electronics Conference and Exposition (APEC 2014) : Fort Worth, Texas, USA, 16-20 March 2014Conference Paper -
Design of a Minimum Weight Dual Active Bridge Converter for an Airborne Wind Turbine System
(2012)2012 Twenty-Seventh Annual IEEE Applied Power Electronics Conference and Exposition (APEC)The design procedure for a bidirectional DAB dc-dc converter, which provides a high dc voltage of 8kV to the tether of a 100 kW Airborne Wind Turbine (AWT) system, is presented. The maximum allowed weight of the dc-dc converter is 25 kg and, thus, the main challenge is the realization of a light-weight DAB converter. The investigated dc-dc converter is split up into 16 single DAB modules with a rated power of 6.25 kW and a dc port voltage ...Conference Paper